Lawn sprinkler



July 17, 1928. 1,677,486

L. R. NELSON LAWN y SPRINKLER Filed Dec. 16, 1925 Patented July 17, 1928.

uaiireesrarss eerie.

1,577,486:- rir eterea?. 1

LEwEN R. NELSON, ,or rnonrm-rrinrnors. f

LAWN SPRINKLER.

v Application led December 16, 1.925. Serial No..75,729.

, Thisinrention pertains to lawn sprinklers,`

beingiiliiected particularly'to sprinklers of the whirling type employing a perforate rotary sprinkler-head.

. One of the objects of the invention is thatV tally subjected to blows or pressures at eitherv ,side of the center ofe mounting. n

, Still another and kvery important object is,

to vprovide for ,a rotary lsprinkler-head a structure that will preventk loss ot water,

pressure at its bearing and vso that all of the pressure can be utilized and delivered through the perforations of-said head.

The invent-ion further lconsists in Vdetails of construction to be pointed out at lengthY herein aided by the accompanying drawing wherein, l l i Figure 1 isa plan of my sprinkler shown about one-halt-size. -Figure 2 is asideelevation of the saine. V Figure 3 is a the arms of the head.

Figure 4 isa vertical transverse section of the head on line 4 4, Figu-'resl and 5, to-

gether with the bearing thereofand portion ot a standard, this figure being pro- `duced about twice thesize of thesprinlrler` l bore ofl said member Afor a`jpurpose to appear Y i as constructed for u se.V

F'g'ure 5v is ya plan ot a portion of thedevice shown in lFigure 4. v

Figure 6 shows theV under side of a part of lthe Vsprinkler-head and the lower side ol the member shown in Figure 5. v

Figure 7. is a transverse section of a part of the device on line 7 7, Figure 4, and

Figure 8 is a side elevation of parts shown j 7in Figure 1, including a longitudinal section of part of the lower wall of the sprinkler-V head.

The sprinkler-head as illustrated in Fig' ures l and 2 is of the same type and general :form of stamping as that illustrated iny my prior pending application for Letters Patent,

Serial Number 718,721 iled J une 9, 1 924, theV present application being more particularly directed to the form of mounting and bearing therefor.

v.transverse section ot .one ofV Said head comprises an apertured top por tion l arched transversely throughout 'as y shown in section in Figure v3, and has the domed central portion 2, while 3 designates a lower portion, the two said portionsl and 3 being overlapped upon one another at their edges to form a closed water space,;the whole being centrally mounted in a manner now to 'i be described. y

First, as diering slightly from. theV body shownin said prior application,-thejupper portion l has a cap portion 4 createdtherein into which extends .from below,f in"a"'si1ug. l

lit, anextension5ot a member Gfha'vingafhollow or shell forni, saidfmember including a shoulder upon whichvsaid capportion4 rests, andv including also a flange 8 whose under 'surface lies lflush with and receivesY againstittthe upper orinner face .of the portion 3, the latter being provided with avhole 3 through which eXtends an eXtremityQ vot said member 6. Said eXtremityQ drops a considerable .distance below the-head l,l 3`

and lis externally .threaded.V

. corresponds with the loutline of; the exterior surface thereof andpopens throughl the "top atl 6 into the head1, being. lspaced therefrom, Y but near its lower end it has a counterboreYV lO'leaving an annular. shouldery 1l.

The; bore of the member 6 :siib'staiitially.Iv

In Figure 5 the top of" themembertis' illustrated, whilea side elevation vof vthat memberfi's shown in Figure '8, it being ob-v served thatportionsot the same at two 'oppo ,sitev sides, in this instance, vare'. cutaway.

above the liangeS, Aas at 12,'. exposing," the later. It is the desire toiixthe lower portionl 3 of the vhead andthe described member 6` relatively and tothis end, as an effective manner of` sodoing, portions ot the Said member just beneath theV tlarngeareicutaway` leaving straight edges, reducing. the diameter of the-member, at these points,;th e opening or hole 3 being thus ot'such oiitlinethat the edges thereat correspond with'and lit4 the member and prevent rotation one on they whole by 14. rvIthas a bore, lextending Athrough it. from end to end, and isofsoine considerable length, and-has an upper terminal portion 16-to 'rotatably lit into the bore ofthe tension 5 of the member about as iio shown. Below such portion 1G theitting is provided with a 'series oi apertures 16'* l and below'these'it's enlarged preferablyrnto a shoulder 1-7 adapted to abut against the described shoulder 11 of the member G' at times-only, while a considemblefsurfaee 1 8- of the fitting has a smooth turning fit in the bore of the last named member beneath its Y threaded portion-'df the member 6,'ts upper member whenr said member and shell are tightly Vscrevi'edj upon one another. The .lower end of 'thel shell or stuiiingboxY is bored to receive the `stem of the ,stang i4 andalso 'serves to bearagainst the. Yring or gasket 23to"h'old alll of .thefree rings in i place upon, one'l another.

A conduit for flow of water Vto the l sprinkler-head is indicatedi infpart at 27, this felfesnfng the usnlportable Sama to carry'the head; 1",.31' It' is'threa'dedt'o receive e ,ed to lreceive thema 124v @reminding 14,

MY'the three l'a'st .named [elements: being rigidly...

Y lfi tinglff, passes from' the upperendl f fintoth'ehead"through'the opening ofthe.

manner/"of connection shown. A

The water enters the-bore" 15 ofthe said thereof abovejthe' flange 8', 'Figure T5, and' .tihrou'gl'i` "thisfroute' lalso entering said sprinklerihead,

the Petter rotating 'due 'tojpassa'ge of Water' throughthe apertures therein" which vare inclined "at an angle as described in said l `pri'or application.

Yeo

'Dueftolthe'upward pressure .of the water against thefhead that member is lifted with the result that jy since the stuffing-box l26 rotates with said heel together with the' member 6, the rings 21, 22, and23 will all" be' vibllnclieiiitogether against theiiXed'- ring .19.v

Thefelt ring 23na'turally' provides considerable friction onthe adjacent ring22y turning it uporror withjrespect to the ring 21 oreven tu'rni'n thelatterring therewith depending upon tie amount of friction set up Within' the' seriesiofsuch rings'.

Thepurpos'e of the pluralityV of rings of l 19 preferably of. bronze, :this being foun ito answer bet-tierlv metalY is that faft'er some little use of the sprinkler their surfaces Williiinally be Worked downfsothat water-tight joints are created so thaw-supposing thatthe Water tended to flow down from the bore or cavity 10, its passage lthroughrthe seated and ground ring surfaces would be entirely prevented, no leaks occnr ring; "therefore, aroundV the stuffing-box rand membery 14. The felt ring 23 is not a necessity ibut merely serves tof sooner effect the grinding of the surfaces' o'f themetal rings.

An' importantV ladvantage in the sprinkler is the .provision of thesurface' 18 Vof gthe {it-ting lvlforming a"bearing Withthe'member together With thek further bearing bet-Ween the extremity 1G of said fitting and"r the upper 'extension 5 of saidzmember 6; These, as may be seen, form two points of bearing betwveenthesetwo elements'ajnd add immeasurably to the: stability. ofthe head ands its' smooth and true' .rotative action, coupletl'with the fact'that the cap portion- 4 `of thehead 1*, 3 is brought snugly down oversai'd extensionf.

It isreadilyseentthat bylpositivel'y cutting' ofi all leaksbelow the lieadall' of' the water pressure is delivered intothe latterl andfull use;of'suoh pressure A1s therefore maintain@d";' v

obviously a great a'dvantagerin s prinllersof the rotary type, Again, i'n my .form of sprinklerv thereis no 'bearingjpoint exposed'A at the'top ofthe affair topermit leakage,

but :rather 'the V*bearing "provided Iherein lisf eompletely"housediin/"the head` sotli'at againV all water entering y the latter is appliedto the' sprinkling 'act 'iOO In assembling the devieeaaememberdie? seate'dfin the opening jof'theheadportion 3, "followedby the capping of. both by 'the portion1. The act of elampingthe'marginal' edges df! thetWoj portions"1,y 3 secures the member f6y in position permanently Where;

upon the"ifjitting-`1`/lv previously provided with tlielfixed" ring 19l is inserted' followed the andAl fitting 121", respectively, are' providfe'd for scoppio action' of the last one direction. Y

I may Inot provide named elements in the opening-:6" nthe top 'of Ythe kportionf of the member lo" kand the specially provided head portion land` therefore in someof the Claims .I shall use' thetermv head asapplying'to eitherof these parts.

I claim' z' LA sprinkler adaptedv for rotation in-v cluding `in its constructionV a hollow' relatively long and' narrow'heaj'd' made from al .flat

n stamping andv comprising' an upper llongi- Y tudinally domed Wall and a lower" separate Len/,Lies

wall the .edges of which wallsv are lapped one upon the other, a tubular member' enclosed between the walls of the head termi nating at one Vend withinthe upper domed` wall and opening into the head, said member having a flange to engage upon the in ner surface of the' lower wall and atv its other' end extending through said lowerwall, and a part outside the head engaging with the member and, clan'iping the .lower wall between itself and the flange Aof said member.

2. A sprinkler of the rotary type including 1in -its construction a Vhollow head com-.

prising van upper wall and ay lower separate wall secured to one another, a tubular member enclosed atone end between the .walls v,of the head and terminatingtherebetween and at its otherend extending through the lower wall and having a lateralextension to engage the inner surface of said lower wall, and a part engageable with the member adapted' to clamp the said lower wall between said member and said extension, the

said upper wall having an integral domed cap portion to receive into it partV of the enclosed member.

3. A sprinkler of the rotary type including in its construction'a hollow head having an upper wall and a lower separate wall whose edges are secured to one another, a

tubular member enclosed at one end in the head and opening at that end thereinto and at-its other end extending through the lower wall and having a lateral extension to lie upon the latter, and apart engageable with the member adapted to clamp said lower wall to said lateral extension, the said upper wall having a domed imperforate cap portion to receive and partially enclose the in-Y ner open end of the said member, said upper wall within the said cap portion beingl lspaced from the opening of the member.

il. A sprinkler of the rotary type including an upper and a lower separate wall por-V tion affixed to one another forming a closed `head, the upper wall having a domed cap portion extending upwardly therefrom creating a recess beneath it, a memberenclosed at one end in the head having one end seated in said recess, the other end of the member extending through the said lower wall and having a lateral extension overlying part of the inner surface of saidV second portion vadapted to beplaced upon the meinberiand bottom wall and secured at its edges tothe latter, and a shell portion threaded upon the member outside the assembly'adapted toy clamp the bottom wall;`

upon the said flange of the said member. i

G.- In a sprinkler, a( portion forming the -v y bottom wall of ahollow sprinkler-head, the

saine havinga hole thereima tubular mem# ber lyingy in thehole and extending from both sides'of said portion and including a flange to engage'one4 sideof ythe latter-asecond portion forming the top walluofvsaid;

head adapted to enclose one end ofthe member andthe flange and secured at its edges to the said bottom wall. after assembly, said;

top Vwall.lnwing a cap portion to receive the end of the member lin' a` snug fit, a shellrpor tion threaded on the extendedend of the.

member outside .theassembled head adaptedl to 'clamp kthe ,bottom wall `upon-the flange ofthe membenand a tubular -perforateffltting extendinginto themember forming a support and bearing upon which the Same is adapted to rotate.

7. In a sprinkler, a portion forming the Y bottom wall of a hollow sprinkler-head, the

same having a hole therein, a tubular member lying in the hole and extending from both sides of said portion and including a Vflange'to engage one side of the latter, a

second portion forming the top wall of said head adapted to enclose one end ofthe member and the flange and secured at its edges to the said bottom wall after assembly, said top wall having a cap portion to receivethe end of the member in a snug fit, a shellV portion threaded on the extended end of the member outside the assembled head adapted yto clamp the bottom wall upon the flange of the member, and a tubular perforate fitting extending into the member forming a support and bearing upon which the same is adapted to rotate, said memberhaving a discharge opening-communicating with the space within the head.

S'. In a sprinkler7 a separate top and bottom portion adapted to be connected to one another to form a sprinkler-head, a tubular member enclosed at one end between theportions including a flange to engage the inner side of the said bottom portion, the top portion having a cap portion tofit upon the end of the member within the head, a sleeve threaded uponthe other end of the member outside the head adapted to clamp the bottom upon the flange, and a perforateA fitting extending into the member having .a turning lit within part of the same within the said head,V said fitting also being spaced from the walls of the bore of the said member within the head. V `1 9. In a sprinkler, a domed portion of thin stamped metal and a second portion connected thereto together forming a cavitied` spninklemhead,` a tubular 'member f extending throughthe said secondi pOrtOnand-Seated 1n thesad domed portion', fixed yWith-respect` toA both,fsaid member including a Hnge Within \the head'gseatedfupon` the saidseeondpom tion,` ai sleeve. 4threadedi -lupom the member outside `the lieadl adapted toolamp the said secondi portion-upon the ifiange,y and :iy tubulazrftting havingI aturningftin saidlmembevat two spaced positions and' spaced from said' member v between suchwpositions, and

hvingas disehaige opening therein betweensaid positions.

10:. In 'arsprinkleln` `a domedvv portion ofl'thin 15' stamped? metal rvandi afsecond portion-oon- Y nested thereto together' forming n: emitied! 'sprinkler-head?, a1 tubular member extending' vmember l outside the f head `adapted tof chimpl the said second portion uponf'the flange, a-

tubularfitting havingja turning lit v`Within said member at two spaced? positions and Y spaced from-'saidA member between such p0-V sitions, there being a'- discharge opening inv the fitting'beiNVeenffc-heV said positions, and' packing rings interposed between the fitting andi sleeve.

lil. In a sprinkler 'head includingan upper domed portion. of `thinv stamped metallV terminating in.V a fiaredi edge,- nl lower'portion of thin stamped metal having its edges turned over upon the -lared edgesA of the said upperpoition, a separate'tubulur memberex.-

tendingf't'hrough the lower portion and snug- 1y fitting at its (inner-end in said upper poiftiomsaidl memberincludlng a. flange dis'- posed inthe spacev between the portions and lyingI upon theflowerof the two, and. er tubular fitting having `:i :turning fit in said tubular' member.

IIntestimony whereof I-aiix mysignafture.

LEWEN n NELSoN. L 

